According to *Quince culture : An illustrated hand-book for the propagation
and cultivation of the quince with descriptions of its varieties, insect
enemies, diseases, and their remedies (1896) - * http://archive.org/details/quincecultureill00meec on page 56 by layering,
page 57 by stooling, page 58 by cuttings, and on page 59 by root cuttings,